CN108054609A - Testing terminal short-circuit device - Google Patents

Abstract

The invention relates to the technical field of electric test terminal shorting, and is a test terminal shorting device, which includes an insulating outer casing, a conductive metal connecting piece and a pin; an insulating outer casing is wrapped and fixed on the outside of the conductive metal connecting piece. Axial threaded holes are arranged at intervals along the length direction on the conductive metal connecting piece, and upper connecting threaded holes and lower connecting threaded holes corresponding to each axial threaded hole are respectively provided on the upper and lower parts of the insulating shell. The present invention has a reasonable and compact structure and is easy to use; the inserted pins can be directly inserted into the terminals that need to be short-circuited; for different short-circuiting work, only the pins need to be selected according to the positions of the terminals, and there is no need to perform irreversible repairs on the insulating shell Cutting; it is fixed on the terminal block by direct insertion, which saves the link of screwing during loading and unloading. The conductive metal connecting piece is wrapped by the insulating outer shell as a whole, and it is an integral structure with the insulating outer shell. A non-slip handle is provided to facilitate the whole once sex loading and unloading.

Description

Test terminal short circuit device

technical field

The invention relates to the technical field of electric test terminal shorting, and relates to a test terminal shorting device.

Background technique

In the power system, whether it is infrastructure debugging or maintenance, shorting the test terminals is a very frequent and important task. At present, the most commonly used shorting tool is to use a long metal sheet with a U-shaped groove as the shorting material, and then fix it on the required terminal with several conductive screws. This method needs to disassemble the screw repeatedly, and the work efficiency is low. In some special cases, it is necessary to unrecoverably cut the short link. For example, when the number of short-connected terminals is less than the number of slots of the shorting piece, the shorting piece needs to be cut. When the number of facing terminals is the same as the number of slots before cutting, the shorting piece will be too short , it is necessary to change the length of the short piece or to splice it, which makes the work inconvenient; when it is necessary to short the non-adjacent terminals, the notch of the middle part needs to be cut off, and the metal part of the connecting piece may touch the middle part during the installation process. Terminals that need to be short-circuited will cause a false short-circuit. Another commonly used short-circuit method is to use test wires for short-circuit. The test line is generally long and inconvenient to carry. When working on the equipment, the short-circuit wiring is complicated, and the short-circuit wiring is the same as the test line, which can easily cause misoperation and damage the test instrument or secondary equipment.

In the technical field of this patent, related types of shorting device inventions have also been published before, such as the Chinese invention patent (application number: 201410203983.9) for a new type of current terminal shorting connection piece. Although it solves the problem of shorting non-adjacent terminals, it uses screws. The installation is fixed, and it is time-consuming to install and unload, and the test line cannot be installed on the contact of the shorting piece. Another example is the Chinese invention patent (application number: 201710123910.2), a complete set of modular and combinable standard current terminal shorting tools. The modules are combined by plugging in. There is no uniform force point, and they need to be loaded and unloaded piece by piece. , is more complicated.

Contents of the invention

The invention provides a test terminal shorting device, which overcomes the shortcomings of the prior art, and can effectively solve the problem that the new type of current terminal shorting piece is installed and fixed by screws, which takes time to assemble and disassemble, and cannot be installed on the contact of the shorting piece. Test wires or a complete set of modular and combinable standard current terminal shorting tools need to be assembled and disassembled piece by piece, which is relatively cumbersome.

The technical solution of the present invention is achieved through the following measures: a test terminal short-circuit device, including an insulating outer casing, a conductive metal connecting piece and a contact pin; an insulating outer casing is wrapped and fixed outside the conductive metal connecting piece, The conductive metal connecting sheet is provided with axial threaded holes at intervals along the length direction, and upper and lower connecting threaded holes corresponding to each axial threaded hole are respectively provided on the upper and lower parts of the insulating shell. Threads are provided on the outer side of the upper part of the pin, and a pin is fixedly installed in each axial threaded hole, upper connecting threaded hole and lower connecting threaded hole. The lower part of the pin is located under the insulating outer shell, and the upper part of the pin is There are jacks inside.

Below is the further optimization or/and improvement to above-mentioned technical scheme of the invention:

The lower part of the pin includes an elastic cylinder with a wide middle and a narrow top and a plug. The elastic cylinder and the plug are integrally connected from top to bottom. The middle of the elastic cylinder is provided with long holes at intervals along the circumference.

A handle is integrally provided on one side of the insulating outer casing.

Both sides of the handle are provided with anti-slip strips, and the rear side of the handle is in a concave arc shape.

The cross-section of the conductive metal connecting piece is T-shaped.

The top level of the above-mentioned contact pin is lower than the top level of the insulating shell.

The above-mentioned conductive metal connecting piece is integrally fixed with the insulating outer casing.

The present invention has a reasonable and compact structure and is easy to use; the inserted pins can be directly inserted into the terminals that need to be shorted; for different shorting tasks, only the pins need to be selected according to the positions of the terminals, and there is no need to perform irreversible repairs on the insulating shell. Cutting; it is fixed on the terminal block by direct insertion, which saves the link of screwing during loading and unloading. The conductive metal connecting piece is wrapped by the insulating outer shell as a whole, and it is an integral structure with the insulating outer shell. A non-slip handle is provided to facilitate the whole once. sex loading and unloading.

Description of drawings

Accompanying drawing 1 is the schematic view of the front stereoscopic structure of the present invention.

Accompanying drawing 2 is the schematic diagram of the three-dimensional structure of the rear side of the present invention.

Accompanying drawing 3 is a schematic cross-sectional structural diagram of a position corresponding to one of the axial threaded holes in accompanying drawing 1 .

Accompanying drawing 4 is the schematic diagram of the front structure of the pin in the present invention.

The codes in the attached drawings are: 1 is the insulating outer casing, 2 is the conductive metal connecting piece, 3 is the pin, 4 is the axial threaded hole, 5 is the upper connection threaded hole, 6 is the lower connection threaded hole, 7 is the Jack, 8 is an elastic tube, 9 is a plug, 10 is a long hole, 11 is a handle, and 12 is an anti-slip strip.

Detailed ways

The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

In the present invention, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout of the accompanying drawing 1 of the specification. Figure 1 layout direction to determine.

Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

As shown in accompanying drawings 1 to 4, the test terminal short-circuiting device includes an insulating outer shell 1, a conductive metal connecting piece 2 and a contact pin 3; Axial threaded holes 4 are arranged at intervals along the length direction on the metal connecting sheet body 2, and upper connecting threaded holes 5 and lower connecting threaded holes 5 corresponding to each axial threaded hole 4 are respectively provided on the upper and lower parts of the insulating shell 1. Connecting threaded hole 6, is provided with screw thread on the upper outside of pin 3, in each axial threaded hole 4, upper connecting threaded hole 5 and lower connecting threaded hole 6, pin 3 is fixedly installed by screw thread, and pin 3 The lower part is located under the insulating outer casing 1 , and a socket 7 is arranged in the upper part of the contact pin 3 . When in use, just install the pin 3 and insert it directly into the terminal that needs to be shorted; for different shorting work, only need to select the pin 3 according to the position of the terminal, without irreversibly cutting the insulating shell 1 .

As shown in Figures 1, 2, and 4. The lower part of the pin 3 includes an elastic cylinder 8 with a wide middle and a narrow top and bottom, and a plug 9. The elastic cylinder 8 and the plug 9 are integrally connected from top to bottom. The middle of the elastic cylinder 8 is provided with long holes 10 at intervals along the circumference. The elastic cylinder 8 with a wide middle and narrow upper and lower parts, the plug 9 and the strip hole 10 can be conveniently inserted into and pulled out of the test terminal at the lower part of the pin 3, and the connection is firm. The link of tightening screws during loading and unloading improves work efficiency.

As shown in FIGS. 1 to 2 , a handle 11 is integrally provided on one side of the insulating housing 1 . The handle 11 is convenient for the user to hold.

As shown in accompanying drawings 1 to 2, both sides of the handle 11 are provided with anti-slip strips 12, and the rear side of the handle 11 is in a concave arc shape. This is more convenient for handling by hand or tools.

As shown in FIG. 3 , the cross section of the conductive metal connecting piece 2 is T-shaped. This can ensure that the contact pin 3 is firmly fixed and increases the contact area with the conductive metal connecting piece 2 .

As shown in FIGS. 1 to 2 , the top level of the contact pin 3 is lower than the top level of the insulating housing 1 . This can prevent the head of the pin 3 from protruding from the conductive metal connecting piece 2, causing contact with adjacent test terminals or test personnel.

According to requirements, the conductive metal connecting piece 2 is integrally fixed with the insulating outer casing 1 .

The use process of the present invention: according to the position of the test terminal that needs to be shorted, the pin 3 is installed at the corresponding position of the insulating outer shell 1 and the conductive metal connecting piece 2, and after the pin 3 is installed, it is directly inserted into the terminal that needs to be shorted. Short circuit can be realized. After the test is completed, grab the handle 11 and pull it out as a whole.

The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and non-essential technical features can be increased or decreased according to actual needs to meet the needs of different situations.

Claims (10)

1. a kind of testing terminal short-circuit device, it is characterised in that including insulation crust body, conducting metal body and contact pin in flakes；It is leading External side has wrapped insulation crust body to electric metal in flakes, on conducting metal in flakes body along its length on be equipped at intervals with axis To threaded hole, be respectively equipped in the upper and lower part of insulation crust body with each axial threaded hole it is one-to-one on connection screw thread Hole and lower connection screw thread hole, contact pin upper outside be equipped with screw thread, each axial threaded hole, on connection screw thread hole and lower company It connects to be threadably secured in threaded hole and contact pin is installed, the lower part of contact pin is located at below insulation crust body, is set in contact pin top There is jack.

2. testing terminal short-circuit device according to claim 1, it is characterised in that it is wide up and down that the lower part of contact pin includes middle part Integrally connected, the middle part of spring cylinder are circumferentially equipped at intervals with strip from top to bottom for narrow spring cylinder and plug, spring cylinder and plug Hole.

3. testing terminal short-circuit device according to claim 2, it is characterised in that the one side of insulation crust body is integrally formed with Handle.

4. testing terminal short-circuit device according to claim 3, it is characterised in that the both sides of handle are equipped with tread plate, hand The rear side of handle is in concave arc shape.

5. according to the testing terminal short-circuit device described in claim 1 or 2 or 3 or 4, it is characterised in that conducting metal body in flakes Cross section is T-shaped.

6. according to the testing terminal short-circuit device described in claim 1 or 2 or 3 or 4, it is characterised in that the elevation of top of contact pin is low In the elevation of top of insulation crust body.

7. testing terminal short-circuit device according to claim 5, it is characterised in that the elevation of top of contact pin is outer less than insulation The elevation of top of housing.

8. according to the testing terminal short-circuit device described in claim 1 or 2 or 3 or 4 or 7, it is characterised in that conducting metal is in flakes Body is integrally fixed with insulation crust body.

9. testing terminal short-circuit device according to claim 5, it is characterised in that conducting metal body and insulation crust in flakes Body is integrally fixed.

10. testing terminal short-circuit device according to claim 6, it is characterised in that conducting metal body and insulation crust in flakes Body is integrally fixed.